TYLER, Texas (KETK) - While visiting the countryside of Texas, have you ever seen trees and fence posts with unique markings the color purple? It's not backwoods graffiti, it means no trespassing.

"It holds the same weight and the same law violations apply," said Prairie View A&M Extension Agent Ashley Pellerin. "It's no trespassing period."

It started out in Arkansas in 1989 as a way for property owners to notify the public of private land and in 1997, the state of Texas adopted the law.

"The reason the Texas legislature did that is they were trying to keep landowners from constantly having to replace signs," said Jonathan Kennedy, owner of EastTexasLands.com. "In Texas as we know, people like to take target practice at signs so they are having to replace them frequently."